The least number which when diminished by 7 is divisible by 21, 28, 36 and 45 is________?

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The least number which when diminished by 7 is divisible by 21, 28, 36 and 45 is________?

A. 1267
B. 1265
C. 1261
D. 68
Explanation:
LCM = 1260
1260 + 7 = 1267